Rainwater will accumulate along the foundations or beneath the floor during rainy seasons unless directed away by proper drainage.
Gutter & Drain:
Clogged gutters will push rainwater under shingles, or will cause water to travel down the walls internally. A lack of drains can cause an overflow. Gutters must empty far enough away from foundation walls or else water will accumulate, leading to damage and a wet basement.
Windows and Doors:
Unprofessionally installed windows and doors allow water to penetrate into the wall. Damaged seals around windows or doors can cause windblown moisture penetration.
Leaking Roofs:
Old roofing materials can expose the roof deck to water intrusion and damage especially around chimneys and exhaust fans. Old shingles will curl and crack, allowing moisture intrusion. Cracked chimney caps allow water into interior areas of the chimney. Flat roof drains can clog and hold water on the roof, increasing the risks of a leak and a possible collapse of the entire roof under the weight of the water.
Attics:
Improper attic insulation and ventilation allows heat to escape, turning rooftop snow into an ice-dam. Ice dams will force moisture under roof shingles where it can drip into the attic or walls.
Additional information includes:
How to prevent water damages?
What are the visible and invisible causes of water damage?
Best ways to deal with a water damage disaster.
How to self inspect your home and be ready for water damage
Water damage insurance issues and services.
How to find and hire a water damage restoration contractor.
